Attachment to sound-reproducing machines for record cleaning



Jan. 3, 1928.

T. WATSON ATTACHMENT TO SOUND REPRODUCING MACHINES FOR RECORD CLEANING 4Filed Jan. 26. 1926 THsooom: WATSD N \NVENTOR;

Auomey.

Patented Jan. 3, 1928..

PATENT-r cl rics...

mnnononn wn'rson or nasm- MELBOURNE, aosrnnnm,-nssreiwon 'I'O'aWATgQjgm3 nounnnnosmaanm a CORPORATION onwlcroarm aimnenmmirrrmsoonn-REBBQBUQINQ mncnmns FOR .nnconnacnnnmec Application,fiIediIanHary-Q IWQ-SfliaL-F ,794,-and1n;. AustraIiaJe bruary-{7..1925Q-I i I My invention relatesto an attachmentfor use -...w1t-h soundreproducing ,machmes, and having. means, .to bear. upon, the record .sur

face to-{olean the. groovesashthe record ro; 5 tates, preventing fineparticles otlo'ose. matr. terbeing left Iinthe .g f9oves, theneedle.then not having. the. grinding damagingefiect that;

it .would haveifthe igrooves were not cleaned,

especially. when .the. {needle ,poin't .becomes 10 wornaHBrushes are nowsometimes attached to'sonnd reproducing. means forthe afore-.

said purpose,butthey are: accompanied by disadvantage s ,.whichinvention avoids; In the, accbmpanyingdrawin'gs, Figurepl shows part ofa record .adapted tofrotate in the direction indicated by an, arrow, andads japentfl'portionsqof -a talking machineare shown, including a ,soundbox'fitted with a brush, and. a needle. Thebrush cleans. the grooyes{before-the latt'erQreach the needle,

Figure. .2 ,is. a perspective. view of] my. at

tachmnt,a partof a nut-being. broken, aw y touexhibit a screw threadjulsta 1e jaw of my attachment,

Figure e is an e ev tionof-the brush front,

and ot. ,the. attachment. byv which the. brush is carried..- :0 Figure 5arm ,Fignre 6 is; I struction .taken on lines 676 ofhigure 5.

of a fragment of a record, and shows the po r sitionsiof thei needlepointand f my b us relatively to each other at the beginning of.

the record groove and at the endthereof, the effectiveness of;athez'brllsll being maintained throughout. a I

Brush means in this specificationa frictional sweeping element forcleaning the grooved record.

sound boxes of various forms. This has advantages compared with thegoose-neck' attachment, but my attachment is also adjustable relativelyto the record.

To form my attachment, a frame 1 is made of bent metal or wire byproducing a loop 2 near one end to form a fixed jaw, op-

which. thi-ls'operates togthe best advantage;

,Figslre =3 is aperspectlve View of ad-;

shows the attachment modified,,, the. brush; bei 11g on an adjustableresilient;

sectional; end view of thecon- Figure 7 shows W5 plan My attachment canbe applied to rims of pQSite to an adjustable jaw .whiohlcanibe Set byrotating ainut 4 thethreadof which.

terminals of theframea, Thisadjustablejaw.

3 is not .rotatable,,but is.slidable,. an.d.may

have slight,- looseness ,or ,play. It has. a hole; 3.,thro,ugh whichextendsfa correspondingly shapedpart .of. the said terminaLl' This awhas a lug 3 extending longitudinally of:

he"frame, as. in Figures Qua-11d, 5,. and )as part3". of the jawisjchannelledat, 3jpart of the .limb latitstherein,vv

l isl a f am -bend fleadingat hef ame; terminal 1f, zwhic]n:.=v is.shown as. a s raight limb carrying ,means of attaching an, adjust?able. clip 5 which has, a recessas a housing... 5 for ..t he,.head-6. ofa:.,br ush 5.. I employbrusheshaying heads. which slide,- into. or out;

Theclip 5 hasfreespringy flanges fi'tex tending towards oneanothenatrthein lower edges, but by i n.sert ion of y the brush, aheadthese flanges. are pressed slightly. apart;,.a11d,.

provide the necessary firm. gr1p To mount. i

the clip slidably, relatively totermi-HaI-Jimbw 1, itis.connected.totaielirule, 5 ..which ,is

slidable' along limb. 1. The clip and .ferrnle are e1ther,close,together; 1(asa in Figur s 1,32, and 4) or.a're spacedapartfiasin.Figures .5

and 6,,in which 5.,is a spring arm. The latf rarni enables. brush 6 tibear r si iently-9n.

herecord, andt automatically. comp nsate; ford iference .ofheightduel-to the f t, 1at:a

the needles. ,-used vary mater ially in length...

Theneiore. .this power, of, compensation is of.

value... v

A,-is.a needle, B .the1stylusbar, .G the so nd box, and s the. firs g ove-of. the record tocbe-pl ayedd In ,Figure .7, A is the needle loo (seeFigure 7) than outwardly.

oblique, asthe user desires. The brush is wide and is made to bear onthe record surface, at, and both inward and outward of, Whatever grooveof the record the needle engages, so that the groove meeting the needle;will always be clean. The brush at first extends a greater distanceinwardly and transversely of the grooves of the rec ords.-' j

2. In a record cleaning'attachment for phonograph reproducers, a brushcarrylng frame having a fixed jaw and an adjustable j aW loosely carriedby the fixed aw and projectingto embrace over the peripheral wall andagainst opposite faces of the reproducer, said adjustable jaw having itsengaging surface concave, the edges thereof'operating to grip thesurface of the reproducer,

and a brush mounted on theframe and adjustable thereon in a directionparallel to the axis of the reproducer and aboutethe frame as a center;

3. In a clamping arrangement for a record' cleaning device on phonographreproducers, a fixed jaw having a threaded projection disposed parallelto the axis of the reproducer, an adjustable clamping jaw operating oversaid projection, andmeans operating over the threaded projection andagainst the adjustable clamping jaw.

4. Ina recordcleaning attachment for phonograph reproducers, a brushcarrying frame comprisinga wire bent upon itself to form a Ushapedmember, one arm thereof having an offset portion to form a jaw midway ofits length operating to'engage againstthe back face of the reproducer,the

end of the wire beyond the jaw being partiallythreaded and disposedparallel to the 7 axis of the reproducer, a second jaw adjust- Each ableover the threaded end portion of the wire and against the front face ofthe reproducer, and a, nut operating over the threaded end and'againstthe secondjaw.

5. A brush carrying frame, as claimed in claim 4,-in which thepartially, threaded end of the wire is flattened between th-e'threadsand the oifset portion, and the second jaw comprises an L-shaped memberhaving one armconcave-to'bring the edges against the surface of thereproduc-er along radiating lines of the latter and the other arm U-shaped to embrace the flattened section of wire and prevent turning ofthe jaw. 1

6. In a record cleaning attachmentfor' phonograph reproducers, a brushcarrying frame having one end clamped to the re producer and the otherend projecting parallel to the axis .of the reproducer and radiallyofthe record, and a brush adjustable over said last mentioned frame'endfrom a point in the path of the r-eproducerneedle record to'wardsthecenter thereof. v

7. A record cleaner attachment to be and then transversely of thegrooves of'the clamped to phonograph reproducers,: com-V prising a wireframe threaded'at one end and projecting in a straight line a distancesubstantially great-er than the intended clamping capacity of theattachmentfthe wire being then turned upon itself to form" a loop toengage the rear face of the repro ducer, the wire projecting straightagain from the loop in a line substantially"parallel with the axisofithe reproducer and'th en curving back on itself in a straight portionparallel to theother-straight portion, a'j'a'w adjustable over thethreaded end'ofythe wire and relative to theloop to engagethe oppositeside of thereproducer', a screwladjustableover the threaded end of the'wire.

and against the jaw, a brush. holder Iarranged on' the other straight.end; of the wire and comprisinganinverted Ushaped holder having abracket movable about the wire and provided with aset screw adapted toengage the wlre, and a brush having a shaped holder.

top portionfslidably engagedin 'theQ-U;v

In witness whereof Lhave hereunto set my hand.' i j THEODORE *WATSQN.

